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Topic Review (Newest First)

11-06-2010, 08:47 PM

Mark L

Launch x431 @ my house now

The wiring in bak must be for the cd changer I found it on my 540 and seems pretty simple. I just need a plug. i was attempting to recode some stuff withthe launch x431. It did the LCM no problem. i cannot figure out the radio. i says ground to earth. it worked before i chaged the wheel. i pulled that again and no issues there.

Also i did a graph on the IHKA and i can see percentages of flow for the flaps and fresh air intakes. I can hear them wokring when i adjust them with the controll in the car and i can pik them up on the Launch interface. Blower still wont work. i shows varying voltage to it.

Also head airbag wont clear.

Thoughts ............???

11-05-2010, 11:09 PM

JimCash

Re: Wiring schematic Ibus short

The I bus uses the white wire with yellow dashes.

It has appearances throughout the car.

Cheers
Jim Cash

11-05-2010, 09:28 PM

Mark L

Paging jim cash

"You either have a faulty climate control unit - or individual problems on those components that are generating the codes." would this be the case if the climate control is not coded to the car?

>>>>>>>>>>>>>>>>>>>>

" do not know what that "battery unplug" code is but if at any time you turned on the ignition switch while one of the air bag circuits or components was disconnected then you get a code and the warning lamp"

WOUld the be a result of the BST being unpluged?

11-05-2010, 09:18 PM

Mark L

Wiring schematic Ibus short

OK i go thte side bag done. soldered andn shrink tube the correct plug on it. Now for the ibus short. in the trunk there is not a maroon plug in for the CD changer like on my 540. what i do have is a small pigtail with three wires in it and no plastic plug for retaining poosition on the wires. . One is white with yellow dashes one is red with green stripe and one is brown what would the plug in be fro? I am assuming the changer. Can i just get the plug? Will the ibus short clear if it is not to ground? I found a unopened DVD changer in the trunk and i am assuming the guy before me had a DVD player in it. NOthing else seems to be cut. I have a frined ciming up from Madison tomorrow with a different Launch tool to see what coded are in it now. Any ideas?

11-04-2010, 01:47 AM

Mark L

Re: Not sure I can provide what you are looking for (m

I got the correct arbag and it is installed. i did it without removing the dash. now i just have he figure out the BST or see if i can get just a replacement with out spendng $350. Also i could use a HID bulb or what the model of the bulb is. for post facelift car.

I am in need of a wiring diagram to tell which wire is the control and which is the ground. They are for the curtain airbags. Unfortunately I have to shrink wrap and solder 1 connector as it is gone I have 2001 M5 VIN wbsde93481bz97995 BLUE YELLOW STRIPE wire and yellow wire. And the airbag is out of the
2003 525 Vin WBADT43423G0424 red wire and white wire.
01 540i6 Nav SSR GT3 Shadow, rear wing((NE1 want this) CDV delete, M5 front bumper (cuz the last one was damaged)

10-30-2010, 05:21 PM

hpy540

Removed HPS airbag W/O remov dash, jim cash

OK i got the HPS drivers airbag out without removing dash or breaking anything. slight modification to fiberglass portion of dash that is hidden by a pillar trim. a little bit of tugging and it came out.

Ok the one that i have for a replacement has a orange plug instead of a yelow one. i know all yellow plus are airbag system. The PN on the bag that i have is 8482176237 or the last digit could be a 2 and the other number on it is 981323110890 it is supposidly out of a 2003 525 vin wbadt43423g034254the charge cyliner seems to be totaly different and the plug( the harge cylinder on the new one is short and stubby and the 2001 M5 one is long and cadnium plated). the 2001 plug has yellow wire and a blue wire with white stripe. the new bag has a red wire and a white wire. I am thinking they gave me the wrong bag. the tag says RR roof sdn.

AThe BTS yellow plug in is tampered with but not blown. I was measureing resistance adn voltage on this piece and the only htin i get is some resistance when everyhting is on and coming from the two 20 ga black wires withthe yellow plug. probably sensing the bag system. this could account for the battery unplug code.

to straighten this out? I would imagine lots of KY would be needed on my part. 01 540i6 Nav SSR GT3 Shadow, rear wing((NE1 want this) CDV delete, M5 front bumper (cuz the last one was damaged)

10-29-2010, 04:30 PM

hpy540

Re: got the codes Paging jim cash

I put a new wheel on it as the car had a x 5 wheel on it. the cruise works. the launch x431 diag tool detected the steerng wheel controls search up, and down and volume up and down. Now the radio workd before i changed the wheel. I guess i should pull it again snd see if there is a pinched wire or bad switch. The head curtain airbag i knew was going to throw a code. it needs to be replaced. Do i have to pull the dash do this? I was hoping to fish it through and do it without pulling the dash.

If the HVAC control was not coded to the car could it caause these symptms? does the gt interface have to have a adress assigned to it? I would like to see if it is jammed? I was able to stick my hand in from the engine compartmt and the blower motor is stil in there. I can spin it.

I have no idea on if somene has worked on it. It is whoredup but yet clean. The car was CPO at 58k when it was sold. it now has 62k on it. the insurance yard is the culprt that did all the damage. it was a really light hit in the left front.

also the rear pdc harnes has been clipped and i have notput a new one in yet. I purchaed a conmplete rear PDC setup from the UK and it is off of a older car. The module is in my car yet but the harness is clipped. I was going to solder and shink tube the older, new harness to the existing 2001 module as the main plug is different. I should unplug it from the existing module in the trunk untill i can get to that.

I also do not have a plug in for a CD changer. 01 540i6 Nav SSR GT3 Shadow, rear wing((NE1 want this) CDV delete, M5 front bumper (cuz the last one was damaged)

I can only give info for your questions based on what makes sense to me from those codes, etc

Climate control system
- the codes are saying that it is detecting faults with all three temperature sensors (left and right heater and also evaporator). The only common point here is the climate panel and connector.
- it also identifies a fault with the flap motor for the main intake and recirc.

To answer your question there are no "flap sensors". All the vent motors are on a common bus network and each one has its own "address" on the bus. They respond to digital messages regarding what position they should be at. They are stepper motors and keep their own memory on how many revolutions they have made. To compensate for flaps moving slightly due to air pressures the system keeps flaps in the fully closed or open poistions (when they are supposed to be in those postions) by applying a few pulses to the appropriate motor ever 20 seconds.

You either have a faulty climate control unit - or individual problems on those components that are generating the codes.

--------------

Steering wheel - you do not show a code but if the wheel controls are not working then I would first suspect a fault with the I bus - mainly because the last item for Nav is also reporting an I bus fault.
FOr the Nav code for PL line - I am not sure what that is but you do not have to have bare wires to have a ground. A pinched wire, or a short inside a connector or component can cause the same thing.

------
Airbag
- you have a fault in the driver's side head back circuit. Could be as simple as disconnected or damaged wire.
I do not know what that "battery unplug" code is but if at any time you turned on the ignition switch while one of the air bag circuits or components was disconnected then you get a code and the warning lamp.

Sounds like you have lots of investigation ahead of you.
Has someone worked on the innards of the dash and these systems?

Cheers
Jim Cash

10-29-2010, 12:50 PM

hpy540

got the codes Paging jim cash

Codes & VIN wbsde93481bz97995
Ok Guys any help would be greatly appreciated. If possible can someone also point out locations for the air flap/sensors. Possibly diagrams or other issues with this stuff that they have had. We had cleared these and they came back. All this was done with a x431 launch diag tool and some stuff could not be dealt with. Any and all suggestions welcome. Right now radio does not work nor the heater
IHKA automatic heater PN 6916641
Hardware number 60
Software number 63
Diagnosis index 03
Bus 10
fficeffice" />
Total codes 005
Code 001 0B heat exchanger right
CODE 002 0E REAR COMPARTEMTN POTENTIOMETER
CODE 003 12 EVAPORATOR SENSOR
CODE 004 13 HEAT EXCHANGER SENSOR LEFT
CODE 005 05 FRESH-AIR/RECIRCULATED-AIR FLAP MOTOR

OK got e Hd thing figured out. Also the Cruise controll works from the wheel. Why wont the radio controlls work. I am still looking for someo one that can help in the upper midwest. I just ordered a Ibus communicator and i am going to DL Navcoder when i get a chance or when i gets here. Any houghts01 540i6 Nav SSR GT3 Shadow, rear wing((NE1 want this) CDV delete, M5 front bumper (cuz the last one was damaged)

10-25-2010, 01:37 PM

hpy540

Nav coder jim cash

Can i use this to code my steering wheel airbag reset etc? http://www.reslers.de/IBUS/index.html